Oscillating pump



' A. B. COOK.

osclLLATlNG PUMP.

APPLICATION FILED Nov.11. uns. 1,416,174. Patented May 16, 1922. x i 2 sums-snm z.

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il.. a PE ALFRED '.B. COOK, OF STOCKTON, CALIFORNIA, ASSGNOR TO TAYLOR-MAYHEW ZPUMPr CO., OE SAN FRANCISCO, CALIFORNIA, A CORPORATION 0F CALIFORNIA.

oscrtnarme ruivrr.

y Patented May. 16,

Application filed November 11.," `1.919. Serial No. 337,126.r

To all 'whomit 'may concern.' f

Be it known that I, ALFRED B. Coon, a citizen of the United States, residing at Stockton, in the county of San Joaquin and State of California, have'invented certain new and useful Improvements in Oscillating Pumps7 of which the following is a specification.

My invention is an improved oscillating pump. i l l Referring to the annexed drawingspforminga part of thisspeciiication:

Figure 1 is a longit dinal section of my pump taken lon line 1-1`of Figure 2. f n

Figure 2 is a cross section of' my pump taken on line 2 2 of Fig. 1. l j

Figure 3 is a cross section of my pump taken on line 3-3 of Fig. 1. Y d

Figure 4 is a fragmentary horizontalsectional view taken on line` 4-4 of Figure3. Figure .is a cross section of the valve chamberstaken on line 5-5 of Figure 1.

Figure 6 is a vertical section of the valve chambers taken o-n line 6-6 of `Figure`5.

In the drawings 1 indicates a cylinder and 2 and 3 the heads `of said cylinder. The heads are secured to the ends of the cylin- `der by bolts 4 and 5 respectively. .The cylinder is formed with a base 6 which supports it in a horizontal position. Inbean ings 7 and 8 in heads 2 and 3 respectively is journaled a shaft 9 extending coaxiallyof thev cylinder 1 and through head 3. On said shaft .is secured an; oscillative ypiston 10 which comprises a hub 11 fitting on said shaft and a pair ofradial blades 12 and 13 pinned in said hub by pins 14 and 15 respectively, said blades being arranged onenhundred and eighty degrees apart. Said blades are cored out in theirouter end portions which increase outwardly in width. Paclrings 16 and 17 are provided in the outer ends of blades 12 and 13 respectively which wipe the inner surface of cylinder 1.` Parktitions 18 and 19 extending from the piston hub11 to the wall of cylinder 1 divide the cylinder into a lower piston chamber 2O and an upper piston chamber 21. Partition 18 has a wall 22 extendingradially and horizontally from one side of the piston hub 11 and two walls 23 and 24 diverging from wall 22 to one side of the cylinder wall. y Partition 19 has a wall 25 `extending radially and horizontally from the other side of the kpiston hub and two walls 26 and 27' vdiverging y2O and 21.

from wall 25 to the other side of the cylinder wall. Packings 28` and 29 are interposed between the ends' of walls k13 yand 19 and the piston hub 11 to prevent leakage between the lower and upper pump chambers The head 2 is formed with an inlet 30, a lower priming water chamber 31, an' u per` air chamber 32 and fourl valve cham. ers y33, 34, ,35 and 36. Said valve ch ambersare formed by head'wall 110 which closes one endy 'of the cylinder 1; angulary .walls 111 and 112` which convergeffrom the wall 110 to a point v37 at the inner end of the inlet 30, on the projected axis of the cylinder 1; Aa horizontal partition 113; and a vertical partition 114. The wall 111 divides the priming water chamber 31 and the valve chambers 34 the air chamber 32 and inlet 30 from the valve chambers33 and 35.

and 36. The wall`112 divides.y

A Wall 38. di-- vides the inlet 30 and air chamber 32' and prevents water from surging from the inlet into thechamber, said wall being provided Vwith an aperture 39 through which air passes fromsaid chamber into said inlet.

The wallsi'lll and 112 are provided with y ports 40 and 41 leading from. the chamber 31 into valve chamber 33 and from inlet 30 into valvepchamber 34 respectively, which ports are controlled by valves 42 and 43 respectively pivoted `by pivots 44 and 115 to the meeting point ofwalls 111 and 113 and the meeting point of the walls 112 and 113 within the chambers 33 and 34. A spring 45 is interposed between the valves 42 and 43 for closing said valve, and a spring 116 is interposed between the valve 43 and 'wall 113 for closing said valve. The wall-110 is provided with "a cylinder inlet 46 leading from valve chambers 33, 34, 35 and 36 into cylinder lthrough which water passes from the valve chambers into the cylinder. The walls 111 and 112 are provided with ports ,117 and 118, leading from the chamberv 31y Ainto valve chamber 35 and'from inlet 30 into valve chamber 36 respectively, which ports are controlled by valves-119 and 120 respectively pivoted by pivots 121 and 122 to the meeting point of the walls 111 and 113 and the meeting point ofthe walls 112 and 113 respectively within the chambers` 35 and 36. A spring 123 is interposed between thevalve f 119 andthe wall 113 and a spring 124is in terposed between the valve 120 and wall v113 for respectively closing said valves. vThe walls 23 and 24 are respectively provided with ports and '5i controlled by valvesy 52 and 53, pivote'd by pivot 54, in the crotch between said walls within an outlet 55 formed in the cylinder and extending from between said walls around the cylinder to thftop thereof. A spring-56 is 'interposed between the valves 52 and 53 for closing them. The walls 26 and 27 are respectively proyided withports `6,0 and 6l controlled by valves V62an'd l63, pivoted, 'by `pivot 64, in the `4crotch betweenfsaid walls within yain outlet 4v6,5* formed in A[the cylinder. and extending from between said` walls around the cylinder i ito valves 52 and 53 and to lvalves 62 and -pisjton l0 to oscillate.

votthepiston7 through inlet 30. port.v

lupon opening doors 68 and 7l respectively.; i. y

head is formed with a closed coni- .partment 80. A. drive lshaft 8l is our'naled in a bearing` `82 in thewall of head 3 which shaftentends from the outside into the head compartment 8 0. The drive shalt 8l and vrthe-piston sha'tt 9 are connectedfby an yoseillator crank movement 85 within the compartment 80. Said movement includes two crank members S6 4and 8T, secured respectively lonydrive shaft 8l and piston shafty 9. Said crank members have spherical meeting` surfaces SS and 89 respectively described .from the intersection oi the axis of shafts 8l 'and 9. On a vpin 90 secured in `crank 'member S6 is journaled a roller '91 which travelsl in a groove92 inthe spherical siii'- face 89 of crank member 87- the inner surface 'of which groove is described trom the r`intersection of the axis ot shafts ySi and l9.

A pulley 4l0() is secured on shaft 8l for driving; the same.

lows: p K Y Rotation of shaft 8l causes crank member 86`torrotate andthe roller9l to travel from loneen'd. otgroove 92 tothe other, which in turn causes crank member4 87, shaft 9 and 'When the piston swings in' a clockwise direction, valves 43 an d 119, and valves 52 and 63 are opened and water istaken into the cylinder rearwardly V.land 117, chambers 34 and 35 vand inlet. 4:6. and is rforced out of, the pump through ports and Gland outlets and 65.,.while valves ,and 62 close and prevent vthe water from flowing in behind the bl'ades'throiigh ports 5l and v,60, and valves '4t2 and 120 remain closed. Vhen the piston swings in a coun- The operation of my invent-ion is as `iiol-y ter-clockwise direct-ion valves 120 and 42, and valves 5i and 62 open and water is taken into the cylinder rearwardly or ythe piston through inlet 30, ports 40 and 118, chambers 'and 36 and inlet 46, and is forced out ot the pump through ports 5l. and 60 and outlets 55"and 65, while valves 52 and 63 'close andr preventthe.water from flowing in behind` 'the blades through ports 50 and 6l and valves 43 and 119 remain closed. i

The air from cliam'ber 32 l'forms a cushion which 'prevents pounding "or the valves 42 and i3 upon closing.. -Vlfhen the pump stops lwater remains in the chamber 3l whichLas- 'sist'ed by the pressure or' the 'air trom chamv'loer 32, enters the 'pump cylinder and primes the 'pump upon starting.

Having described my invention l claim: l. lna piiinp, a cylinder provided with an inlet and an outlet, an oscillative vpiston moiiiited insaid cylinder, means For admitting water through said inlet intosaid cylinder, one ofthe cylinder heads being hollow, a drive ,shaft extending` into 'said head, and

an oscillative 'movement within said head connecting` said shaft and the 'p'istonshai`t- 2. A pump including a casing provided withaninlet and an outlet, an oscillating -piston in said casing tor pumping water 'through said inlet and casing yand out through `said outlet, an oscillatory crank movement including` a crank 'member 'secured on the piston shai'da second crank member adjacent said first crank member, a drive shaft on which said second Acrank member is secured, said drive shatt being arranged at right angles to the piston shaft, the meeting 4surfaces of said crank inen'ibers being' spheribein'g the interseccal, the center ol which Y tion of the axiso said drive shaft and said piston shaft, said irst crank member being' formed with a `groove in its spliericalmejeting surface 'eXteiiding' transversely ot the 'axis of said drive shaft. the inner surfaceot said groove being described'trom the intersection of the piston shaft "and the drive shaift, anda roller journaled on the second crank member in said groove.

y 3. `In 'a pump,y a Cylinder provided ywith an inlet and an outlet, means tor admitting,r water through said iiilet into said cylinder,

an oscillative'piston in said cylinder, apartition extending' from the hub o'fsaid piston to thelcylinder wall, two diveil'ginp; wallson said ipartition con'i'iecting with 'the cylinder "wall, a 'port in each diverging' wall, two valves pivoted in the crotch ot salid'diverg'- ing walls for respectivelyfcontrollingr said ports, said outlet leading 'froiiibetween said divergingfwalls, anda door in the'outer 'wall of the cylinderfto `'permit accessA to said valves. y

4. In aipump, 'a cylinder provided 'with' an outlet, an oscillative piston in said cylinder,

one head of said i-,yliirdeibeing "fornietl with Eis 0 10 a main inlet, four v alve chambers, an air chamber and af priming chamber outside said valve chambers, and cylinder inlets leadingl from said valve chambers, said valve chambers being respectively provided with inlet ports communicating With said main 15 inlet, and a valve controlling each of said ports.

y In testimony Whereoi1 l affix my signature.

ALFRED B. COOK. 

